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value | first_window int64 0 3.54M | windows int64 1 578 | tokenized_tokens int64 340 196k | dropped_tokens int64 0 338 |
|---|---|---|---|---|---|---|
The Solar and Heliospheric Observatory (SOHO) spacecraft is expected to discover its 1,000TH comet this summer.
The SOHO spacecraft is a joint effort between NASA and the European Space Agency. It has accounted for approximately one-half of all comet discoveries with computed orbits in the history of astronomy.
"Before... | 0 | train | 0 | 2 | 795 | 116 |
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Lauren Boulden's Story
Using Think-Alouds to Get Inside Langston Hughes' Head
Over my past few years of teaching, there have been multiple occasions where I have been stumped on how to present a particular concept to my students. I've always been a... | 1 | train | 2 | 2 | 760 | 81 |
King James II of England (who was also James VII of Scotland) inherited the throne in 1685 upon the death of his brother, Charles II. James II was unpopular because of his attempts to increase the power of the monarchy and restore the Catholic faith. Deposed in the "Glorious Revolution" of 1688-89, he fled to France. H... | 2 | train | 4 | 1 | 607 | 267 |
This section provides primary sources that document how Indian and European men and one English and one Indian woman have described the practice of sati, or the self-immolation of Hindu widows.
Although they are all critical of self-immolation, Francois Bernier, Fanny Parks, Lord William Bentinck, and Rev. England pres... | 3 | train | 5 | 4 | 1,438 | 81 |
Throughout life there are many times when outside influences change or influence decision-making. The young child has inner motivation to learn and explore, but as he matures, finds outside sources to be a motivating force for development, as well. Along with being a beneficial influence, there are moments when peer pr... | 4 | train | 9 | 3 | 1,268 | 250 |
EVEN a material 10 billion times as strong as steel has a breaking point. It seems neutron stars may shatter under extreme forces, explaining puzzling X-ray flares.
Neutron stars are dense remnants of stars gone supernova, packing the mass of the sun into a sphere the size of a city. Their cores may be fluid, but their... | 5 | train | 12 | 1 | 613 | 273 |
When he shot President Lincoln, John Wilkes Booth was 26 years old, and one of the nation’s most famous actors. (Charles DeForest Fredericks/National Portrait Gallery)
John Wilkes Booth, a Maryland native, spent the war performing in theatrical productions. But the conflict was never far from his mind. In a letter to h... | 6 | train | 13 | 7 | 2,706 | 332 |
by Piter Kehoma Boll
Let’s expand the universe of Friday Fellow by presenting a plant for the first time! And what could be a better choice to start than the famous Grandidier’s Baobab? Belonging to the species Adansonia grandidieri, this tree is one of the trademarks of Madagascar, being the biggest species of this ge... | 7 | train | 20 | 1 | 606 | 266 |
Fun Learning with Printable Flash Cards
Here you will find our selection of free printable flash cards for preschool learning (and beyond!). Flash cards are a great way for kids to learn the basic elements and memorize them through short repeat sessions. You’ll find helping them learn their first abc, animal names and ... | 9 | train | 21 | 1 | 341 | 1 |
Learn something new every day More Info... by email
A predicate is part of a sentence or clause in English and is one of two primary components that serves to effectively complete the sentence. Sentences consist of two main components: subjects and predicates. Subjects are the primary “thing” in a sentence which the re... | 10 | train | 22 | 1 | 666 | 326 |
General Chemistry/Periodicity and Electron Configurations
Blocks of the Periodic Table
The Periodic Table does more than just list the elements. The word periodic means that in each row, or period, there is a pattern of characteristics in the elements. This is because the elements are listed in part by their electron ... | 11 | train | 23 | 5 | 1,904 | 208 |
Per Square Meter
Warm-up: Relationships in Ecosystems (10 minutes)
1. Begin this lesson by presenting the powerpoint, “Per Square Meter”.
2. After the presentation, ask students to think of animal relationships that correspond to each of the following types; Competition, Predation, Parasitism, and Mutualism
a. For exam... | 12 | train | 28 | 4 | 1,406 | 49 |
From the time of Aristotle (384-322 BC) until the late 1500’s, gravity was believed to act differently on different objects.
- Drop a metal bar and a feather at the same time… which one hits the ground first?
- Obviously, common sense will tell you that the bar will hit first, while the feather slowly flutters to the g... | 13 | train | 32 | 4 | 1,501 | 144 |
What we ship things in makes a difference.
Take the banana, for example. In 1876, at the Philadelphia Centennial Exposition, the banana was a delicacy (and very black). Millions of bunches could only be sent to U.S. shores if they were refrigerated. By 1901, as I describe in Econ 101 1/2, United Fruit was distributing ... | 14 | train | 36 | 1 | 522 | 182 |
Nephila jurassica: The biggest spider fossil ever found
Spiders are small arthropods, famous for their elasticity, strength and web-making abilities. For some people, spiders are not welcome in the home; as soon as they see one crawling on the ceiling, the first thought that comes to mind is to swat it at once.
But spi... | 15 | train | 37 | 1 | 474 | 134 |
John Langley Howard was a revolutionary regionalist painter known for depicting labor and industry in California as well as his reverence for the natural world. Howard took a strong stance on social and environmental issues and used his art to communicate his strong emotional response toward each of his subjects.
Table... | 17 | train | 38 | 10 | 3,671 | 280 |
A new tool to identify the calls of bat species could help conservation efforts.
Because bats are nocturnal and difficult to observe or catch, the most effective way to study them is to monitor their echolocation calls. These sounds are emitted in order to hear the echo bouncing back from surfaces around the bats, allo... | 18 | train | 48 | 1 | 461 | 121 |
The formation of counties was one of the first matters attended to by the Lords Proprietors after they received their charter in 1663 from King Charles II for the vast tract of land in America he called the province of Carolina. In 1664 the Proprietors formed "all that parte of the province which lyeth on the north ea... | 20 | train | 49 | 5 | 1,730 | 34 |
Learn something new every day More Info... by email
Thermal epoxy is any adhesive epoxy that has one or more substances added to it to enhance thermal, or heat, transfer. These epoxies can be electrically conductive or not conductive, depending on the thermal additive used. Silver and other metal-based thermal additive... | 21 | train | 54 | 1 | 665 | 325 |
The Brazilian Supreme Court's recognition of same-sex unions in early May marks the latest victory for gay rights in Latin America. The Court's ruling grants equal legal rights to same-sex civil unions as those enjoyed by married heterosexuals, including retirement benefits, joint tax declarations, inheritance rights, ... | 22 | train | 55 | 4 | 1,662 | 305 |
Memory loss (amnesia) is unusual forgetfulness. You may not be able to remember new events, recall one or more memories of the past, or both.
Forgetfulness; Amnesia; Impaired memory; Loss of memory; Amnestic syndrome
Normal aging may cause some forgetfullness. It's normal to have some trouble learning new material, or ... | 23 | train | 59 | 4 | 1,631 | 274 |
An accessor method is an instance method that gets or sets the value of a property of an object. In Cocoa’s terminology, a method that retrieves the value of an object’s property is referred to as a getter method, or “getter;” a method that changes the value of an object’s property is referred to as a setter method, or... | 26 | train | 63 | 1 | 369 | 29 |
General Information / Education / Medical / Cultural / Entertainment
The History ... Cumberland Gap has been used as a crossing point in the Appalachian Mountains. Animals have used it as a path to the green pastures of Kentucky. Native Americans used the Gap as the Warrior's Path that led from the Potomac River down t... | 27 | train | 64 | 4 | 1,583 | 226 |
Variation is a term used in genetic science, and concerns the emergence of different varieties, or species. This genetic phenomenon causes individuals or groups within a given species to possess different features from others. For example, all human beings on Earth possess essentially the same genetic information. But ... | 28 | train | 68 | 6 | 2,037 | 2 |
The dangers of feeding lorikeets
Lorikeet feeding habits
Lorikeets are brightly coloured parrots of the family Psittacidae and sub-family Loriinae (lories and lorikeets). Six species are found in Australia, although further species occur in New Guinea, Indonesia and many South Pacific islands.
The tip of a lorikeet's t... | 29 | train | 74 | 2 | 1,000 | 321 |
Definitions of bullying
Bullying is when a person or a group repeatedly and intentionally uses or abuse their power to intimidate, hurt, oppress or damage someone else. It can be covert or cyber-based (happening online through social networks or even through mobile phones). Bullying can be physical or emotional.
Accord... | 30 | train | 76 | 2 | 809 | 130 |
Studies of a thigh bone fossil have uncovered strong evidence that a human-like creature walked upright six million years ago rather than the widely accepted four million years ago.
Walking on two feet, bipedalism , is one of the characteristics that distinguishes apes from humans.
‘Dating the beginnings of bipedalism ... | 31 | train | 78 | 1 | 393 | 53 |
Habitat Affects Escape Behavior of Birds
It seems birds of the same species raised in diverse settings behave differently in the face of a threat. Birds raised in an urban environment react differently than country-bred birds when faced with a predator.
A study undertaken by Diego Ibanez-Alamo, researcher at the Univer... | 32 | train | 79 | 1 | 463 | 123 |
new zealand curriculum
The New Zealand Curriculum is
built around the acquisition of essential academic and practical
skills. It identifies 7 academic or essential
These are balanced by 8 practical
or essential skills:
- Language and languages
- Social sciences
- The arts
- Health & physical
- Communication skills
- Nu... | 33 | train | 80 | 7 | 2,406 | 32 |
NINE BANDED ARMADILLO
Photo Credit: U. S. Fish and Wildlife Service
SCIENTIFIC NAME: Dasypus novemcinctus
OTHER NAMES: Armadillo, Common Long-Nosed Armadillo
DESCRIPTION: The nine-banded armadillo (Dasypus novemcinctus) cannot easily be confused with any other North American wild mammal. The armadillo’s body is covered... | 34 | train | 87 | 4 | 1,660 | 303 |
Research and Tracking
Accurately tracking birth defects is the first step in preventing them and reducing their effect. Birth defects tracking systems are vital to help us find out where and when birth defects occur and who they affect. This gives us important clues about preventing birth defects and allows us to evalu... | 35 | train | 91 | 7 | 2,472 | 98 |
Basics: What is the GRE®?
The Graduate Record Examination (GRE®) is a standardized test used by graduate programs to help determine who gets in and who receives grants and fellowships. The exam comes in two types: the general exam, which covers a range of non-specific skills developed over a long period of time and yea... | 36 | train | 98 | 1 | 401 | 61 |
The Appalachian Mountain range is nearly 1,500 miles long stretching from the southeast corner of Canada to Alabama. The Cumberland Gap, a natural break in the range near the eastern borders of Kentucky and Tennessee, is now a paved highway known as US 25E. A section of US 25E that now passes through a tunnel underneat... | 37 | train | 99 | 2 | 877 | 198 |
Mon 20 Jul 2009
As far as scary-looking fish go, the adult sea lamprey is right up there with the sharks. It’s about 3 feet long, with concentric rings of teeth inside a jawless, suction-cup mouth. After trapping its prey by sucking, the lamprey scrapes off the skin using a tooth at the end of its tongue, and then suck... | 38 | train | 101 | 1 | 484 | 144 |
Philippa Ryan, Scientist, British Museum
Archaeobotany is the study of ancient plant remains, and I joined the field team at Amara West in Sudan earlier this year to collect samples for archaeobotanical analysis. Charred plant materials were retrieved on-site from sediments through dry-sieving and flotation. These samp... | 39 | train | 102 | 1 | 569 | 229 |
Viator,Vol. 37 (2006)
In 772, shortly after annexing his brother’s share of the Frankish kingdom, Charlemagne launched his first campaign against the Saxons. “No war taken up by the Frankish people was ever longer, harder or more dreadful,” wrote Einhard almost half a century later. For more than three decades (from 77... | 40 | train | 103 | 1 | 446 | 106 |
Aswan High Dam on the Nile River
Aswan-- On 15 January 1971, Egypt celebrated the completion of the High Dam, whose funding was the center of a Cold War dispute that led to the 1956 Suez War. Located on the Upper Nile, around 1000km downstream from Cairo, the gigantic mountain of concrete and steel is among the 20th ce... | 41 | train | 104 | 5 | 1,948 | 252 |
Technology in the Classroom
Assistive Word Processing
Assistive technology to support writing includes special software as well as inexpensive word processors.
Using a Pen Scanner
Pen scanners, handheld scanner and Iris Pens
Effective Use of Switches
Augmentative or Alternative Communication
Augmentative or Alternative... | 43 | train | 109 | 1 | 449 | 109 |
International Women’s Day (IWD) was founded in 1910 in order to confront the great inequalities women faced in the labor force and society as a whole. Unfortunately, one hundred years later, women still make up a majority of the world’s poor.
Women’s wages in the U.S. are only 76% of men’s, but the disparity of long-te... | 44 | train | 110 | 1 | 647 | 307 |
Darfur’s people are a complex mosaic of between 40 and 90 ethnic groups, some of ‘African’ origin (mostly settled farmers), some Arabs. All Darfurians are Muslim. The Arabs began arriving in the 14th century and established themselves as mainly nomadic cattle and camel herders. Peaceful coexistence has been the norm, w... | 45 | train | 111 | 7 | 2,575 | 201 |
The Immigration History Research Center is home to thousands of feet of archival records that illuminate the immigrant experience, past and present. While these records are available to students and teachers for research in the University of Minnesota’s Andersen Library, exploring the archive from afar is as simple as ... | 46 | train | 118 | 1 | 651 | 311 |
Want to stay on top of all the space news? Follow @universetoday on TwitterSedimentary rock covers 70% of the Earth. Erosion is constantly changing the face of the Earth. Weathering agents…wind, water, and ice…break rock into smaller pieces that flow down waterways until the settle to the bottom permanently. These sedi... | 47 | train | 119 | 1 | 589 | 249 |
Feral cats occur right across the continent in every habitat type including deserts, forests and grasslands. Total population estimates vary from 5 million to 18 million feral cats. Each feral cat kills between 5-30 animals per day. Taking the lower figure in that range (five) – and multiplying it by a conservative pop... | 48 | train | 120 | 1 | 602 | 262 |
MiniMind FineWeb-Edu Score >= 3.5 — v1.0
Exact dataset release for the completed 2026-10-24 Dense/MoE full-document pretraining experiment. This is not the entire FineWeb-Edu corpus: it is the existing score >= 3.5 selection from sample/10BT at the pinned upstream revision.
- Selected source: 1,288,228 documents. The threshold is >= 3.5, not > 3.5.
- Actual training: 1,096,131 documents, 4,407,066 windows; validation: 274 documents, 1,095 windows.
- 191,823 documents shorter than one complete window across both assigned splits are in
excluded_documents. They produced no optimizer/evaluation windows. - BOS + entire document + EOS; 340-token windows, stride 339; final incomplete window discarded within each document, no cross-document packing. Training shuffled all windows for 2 epochs.
documentscontains full source text, including the trailing text omitted by training. The authoritative exact training inputs arearrays/*.bin, not all of that text.windows,first_window,tokenized_tokens,dropped_tokensandassigned_splitmake this distinction explicit.- Split: first 8 bytes of SHA256(text), modulo 4096 equals zero → validation; otherwise train. Source order and original document index are retained.
- Tokenizer: bundled original 6,400-token tokenizer. Arrays are uint16, shape
[N,340]. Model training shifts next-token labels internally. Evaluation originally used a fixed 1,024-window validation subset; see the experiment recipe.
from datasets import load_dataset
from huggingface_hub import hf_hub_download
import numpy as np
repo = "caspar/MiniMind-FineWeb-Edu-Score35-v1.0"
docs = load_dataset(repo, "documents", revision="v1.0")
path = hf_hub_download(repo, "arrays/train.bin", repo_type="dataset", revision="v1.0")
windows = np.memmap(path, mode="r", dtype="<u2", shape=(4407066, 340))
License and attribution
Derived from HuggingFaceFW/FineWeb-Edu, ODC-By 1.0, also subject to Common Crawl terms. Credit the FineWeb/FineWeb-Edu creators and preserve upstream attribution and notices. Web documents remain subject to their original rights. Original conversion records, shard manifest and the upstream dataset card are included. The attribution config preserves original URL, document ID, dump, WARC file path, language and education score for all 1,288,228 selected documents. Join it to the documents by source_row. Each row was checked against the actual training JSONL text in original source order; filtered Parquet shard hashes were also verified.
Pinned sources
- HuggingFaceFW/fineweb-edu —
87f09149ef4734204d70ed1d046ddc9ca3f2b8f9
Integrity and reproducibility
SHA256SUMS.json lists every released artifact except itself. Original training manifests retain historical /shared-volume/ paths for provenance; use this repository’s relative paths when loading. recipe/ contains the original preparation logic as reference, not a portable one-command cloud launcher. No API keys, optimizer states or model weights are included. Version: v1.0.
Exported row counts:
{
"train": 1096131,
"validation": 274,
"excluded": 191823
}
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